Powerhouse Vegetables

From Rodale, the top 15. #2 is Chinese cabbage like bok choy, a personal favorite. All of the top 15 are also leafy greens. You just might see watercress and collards on the menu.

"What's a powerhouse fruit or vegetable? Any food providing 10 percent or more of a single daily value of a nutrient is considered a "good source" of that nutrient. But, to earn the title of "powerhouse," fruits and vegetables need to be considered a good source of 17 key nutrients, from vitamin A to zinc."